Who Let a Mere Martial Artist Cultivate the Sword?

[No System][No Transmigration][Invincible Fleshly Body][Ultimate Sword Dao][Ruthless and Decisive][Bulldozing All the Way] ............... Qin Guan is a powerful eight-realm martial artist who obeys his master's orders and descends the mountain to fulfill his marriage contract. The Nan Family believes Qin Guan to be a useless waste unable to cultivate. Unwilling to break the promise and tarnish their reputation, nor to marry their exceptionally talented second miss to him, the Nan Family's stepmother has the dying eldest miss substitute as a bride for her own daughter. Who could have known that the kind-hearted eldest miss would turn disaster into fortune, meeting the true love of her life just as her own life neared its end. Everyone believes Qin Guan to be a waste, unaware that he is a martial artist exceptionally skilled in combat. The moment he strikes, everyone is shocked! Everyone thinks martial artists are born without a dantian, unable to condense spiritual power for cultivation and destined never to achieve greatness. Yet Qin Guan obtains a heaven-defying inheritance—even a martial artist can cultivate the sword dao, dual cultivating both sword and martial arts. You, a martial artist—who let you cultivate the sword?